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  <title>学生</title>
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<body class="application application-offset">
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            <h5 class="mb-0 text-white">黑马前端</h5>
            <span class="d-block text-sm text-white opacity-8 mb-3">数据可视化</span>
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          <span class="btn-inner--icon d-block pt-2">学生</span>
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        <div class="page-title mb-3">
          <div class="row justify-content-between align-items-center">
            <div class="col-md-6 mb-3 mb-md-0">
              <h5 class="h3 font-weight-400 mb-0 text-white">Students</h5>
              <span class="text-sm text-white opacity-8">一共有 <b class="total">0</b> 位学员</span>
            </div>
            <div class="col-md-6 d-flex align-items-center justify-content-between justify-content-md-end">
              <a id="openModal" href="javascript:;" class="btn btn-sm btn-white btn-icon-only rounded-circle ml-4">
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        <div class="row">
          <div class="col">
            <div class="card card-fluid">
              <div class="table-responsive" style="min-height: 1000px">
                <table class="table align-items-center">
                  <thead>
                    <tr>
                      <th>姓名</th>
                      <th>年龄</th>
                      <th>性别</th>
                      <th>组号</th>
                      <th>期望薪资</th>
                      <th>就业薪资</th>
                      <th>籍贯</th>
                      <th>操作</th>
                    </tr>
                  </thead>
                  <tbody class="list">
                    <!-- <tr>
                      <td>张杰</td>
                      <td>20</td>
                      <td>男</td>
                      <td>第2组</td>
                      <td>10000</td>
                      <td>13000</td>
                      <td>北京北京市东城区</td>
                      <td>
                        <a href="javascript:;" class="text-success mr-3"><i class="bi bi-pen"></i></a>
                        <a href="javascript:;" class="text-danger"><i class="bi bi-trash"></i></a>
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  </div>
  <!-- add Modal -->
  <div class="modal fade" id="modal">
    <div class="modal-dialog modal-lg">
      <div class="modal-content">
        <div class="modal-header">
          <h5 class="modal-title">添加/编辑学员</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
        </div>
        <div class="modal-body">
          <form id="form" class="g-3 row" autocomplete="off" novalidate>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">姓名：</label>
                <input type="text" name="name" class="form-control" placeholder="请输入姓名" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">性别：</label>
                <div class="input">
                  <div class="form-check d-inline-block">
                    <input value="0" checked id="cb01" class="form-check-input" type="radio" name="gender" />
                    <label for="cb01" class="form-check-label">男</label>
                  </div>
                  <div class="form-check d-inline-block">
                    <input value="1" id="cb02" class="form-check-input" type="radio" name="gender" />
                    <label for="cb02" class="form-check-label">女</label>
                  </div>
                </div>
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">年龄：</label>
                <input type="text" name="age" class="form-control" placeholder="请输入年龄" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">组号：</label>
                <input type="text" name="group" class="form-control" placeholder="请输入1-8组号" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">期望薪资：</label>
                <input type="text" name="hope_salary" class="form-control" placeholder="请输入期望薪资" />
              </div>
            </div>
            <div class="col-sm-6">
              <div class="form-group">
                <label class="input-group-label">就业薪资：</label>
                <input type="text" name="salary" class="form-control" placeholder="请输入就业薪资" />
              </div>
            </div>
            <div class="col-sm-12">
              <div class="form-group">
                <label class="input-group-label">籍贯：</label>
                <div class="input pl-0">
                  <select class="form-select custom-select" name="province">
                    <option value="">--省份--</option>
                  </select>
                  <select class="form-select custom-select" name="city">
                    <option value="">--城市--</option>
                  </select>
                  <select class="form-select custom-select" name="area">
                    <option value="">--地区--</option>
                  </select>
                </div>
              </div>
            </div>
          </form>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
          <button type="button" class="btn btn-blue" id="submit">确认</button>
        </div>
      </div>
    </div>
  </div>
  <div class="modal fade" id="modal"></div>
  <script src="./bootstrap/bootstrap.min.js"></script>
  <script src="./lib/axios.js"></script>
  <script src="./lib/form-serialize.js"></script>
  <script src="./js/common.js"></script>
  <script>
    // 渲染学生信息 
    // 1.1 封装渲染函数
    async function rederList() {
      // 获取学生信息
      // const res = await axios.get('/students')
      // console.log('服务器响应回来的数据',res);
      // console.log('学生信息的数组',res.data);
      // 对服务器响应回来的数据（对象）进行解构
      // 把data中的数据中取出来 并且重命名为studentList
      const { data: studentList } = await axios.get('/students')
      console.log('学生信息的数组', studentList);


      // 渲染学生信息
      // 生成tr 渲染到页面
      // 定义空字符串 遍历数组 生成tr拼接到指定位置
      let str = '';
      studentList.forEach(item => {
        str = str + `<tr>
                      <td>${item.name}</td>
                      <td>${item.age}</td>
                      <td>${item.gender == 0 ? '男' : '女'}</td>
                      <td>${item.group}</td>
                      <td>${item.hope_salary}</td>
                      <td>${item.salary}</td>
                      <td>${item.city}${item.area}</td>
                      <td>
                        <a href="javascript:;" class="text-success mr-3"><i class="bi bi-pen" data-id="${item.id}"></i></a>
                        <a href="javascript:;" class="text-danger"><i class="bi bi-trash" data-id="${item.id}"></i></a>
                      </td>
                    </tr>`
      });
      document.querySelector('tbody').innerHTML = str
    }
    // 调用渲染函数
    rederList()

    // 删除  
    // 给删除按钮注册点击事件  获取学生的id 调借口 重新渲染学生列表
    document.querySelector('tbody').addEventListener('click', async function (e) {
      //if(e.target.className === 'bi bi-trash'){
      //}
      // contains 判断是否包含
      if (e.target.classList.contains('bi-trash')) {
        // console.log('点击了删除按钮');
        const id = e.target.dataset.id
        // console.log(id);
        try {
          // :id 是路径参数
          await axios.delete(`/students/${id}`)
          rederList()
        }
        catch (error) {
          alert('删除失败')
        }
      }
      else if (e.target.classList.contains('bi-pen')){
        // 单机编辑按钮 弹出模态框
        modal.show()
        document.querySelector('.modal-title').innerHTML = '编辑学员'
        // 获取学生id
        const id = e.target.dataset.id
        // console.log('学生id',id);
        modalBox.dataset.id = id
        // 获取学生信息详情
        const {data:studentInfo} = await axios.get(`/students/${id}`)
        console.log('学生详情 对象',studentInfo);

        // 回显学生信息到表单
        // 获取所有表单项都有name属性
        const ipts = [...modalBox.querySelectorAll('form [name]')]
        // 遍历表单项
        ipts.forEach(ipt=>{
          console.log('每一个表单项',ipt);   
          // 获取表单对应的 数据 
          const k = ipt.name
          console.log(k,studentInfo[k]);
          // 给表单项赋值 ----- 判断是不是性别的单选按钮
          if(k==='gender'){
            // 设置被选中
            if(+ipt.value===studentInfo.gender){
              ipt.checked = true
            }
          }else{
            // 设置value
            ipt.value = studentInfo[k]
          }
        })
        // 获取学生信息中的数据
        const { data: cArr } = await axios.get('/api/city', {
          params: {
            // pname 当前省份的值
            pname: pSelect.value,
          },
        })
        console.log('城市数据', cArr);
        // 渲染城市数据
        // 渲染省份数据到下拉列表
        let str = '';
        cArr.forEach(item => {
          str = str + `<option value = "${item}">${item}</option>`
        })
        // 所有选项前 放一个空选项
        cSelect.innerHTML = `<option value = "">--城市--</option>` + str
        // 给表单项设置value值
        cSelect.value = studentInfo.city
        // ---------- 获取区的数据并渲染 给下来列表设置value即可
        // -------------------获取区的数据并渲染，给区下拉列表设置value即可--------------------------------------------
        const { data: aArr } = await axios.get('/api/area', {
            params: {
              pname: pSelect.value,
              cname: cSelect.value,
            },
          })
          // console.log('区县数据---数组', aArr)
          // 渲染区县数据到下拉列表中
          let str1 = ''
          aArr.forEach(item => {
            str1 += `<option value="${item}">${item}</option>`
          })
          // 所有选项的前面，放一个空选项
          aSelect.innerHTML = '<option value="">--区县--</option>' + str1
          aSelect.value = studentInfo.area

      }

    })



    // 添加学生
    // // 3.1 单击“+”弹出模态框
    // // 1】获取模态框盒子
    const modalBox = document.querySelector('#modal')
    // // 2】创建模态框对象
    const modal = new bootstrap.Modal(modalBox)
    // // 3】调用方法，控制显示和隐藏(show()显示/hide()隐藏)---一会马上就注释掉（测试代码）
    // modal.show()
    // setTimeout(function () {
    //   modal.hide()
    // }, 3000)

    document.querySelector('#openModal').addEventListener('click', function () {
      // 显示模态框
      modal.show()
      // 修改标题
      document.querySelector('.modal-title').innerHTML = '添加学员'
      // 清空模态框盒子中的表单（表单对象.reset()）
      modalBox.querySelector('form').reset()
      // 添加和编辑 共用一个模态框盒子  
      // 区分 给模态框添加自定属性
      // 如果是添加 给模态框标签添加自定义属性data-id=add
      // 如果是编辑 给模态框标签添加自定义属性data-id=学生id
      // 给模态框盒子添加自定义属性
      modalBox.dataset.id = 'add'
    })
      // 省市区联动 
      // 获取三个下拉元素对象
      const pSelect = document.querySelector('[name="province"]')
      const cSelect = document.querySelector('[name="city"]')
      const aSelect = document.querySelector('[name="area"]')
      initProvince()
      async function initProvince() {
        // 获取所有省份并渲染
        const { data: pArr } = await axios.get('/api/province')
        console.log('省份数据', pArr);
        // 渲染省份数据到下拉列表
        let str = '';
        pArr.forEach(item => {
          str = str + `<option value = "${item}">${item}</option>`
        })
        pSelect.innerHTML = `<option value = "">--省份--</option>` + str
      }

      // 省发生变化 市和区跟着变
      pSelect.addEventListener('change', async function () {
        // 区 。 选项清空
        aSelect.innerHTML = `<option value = "">--区县--</option>`
        // 市 。 变成所选的省下的市
        const { data: cArr } = await axios.get('/api/city', {
          params: {
            // pname 当前省份的值
            pname: pSelect.value,
          },
        })
        console.log('城市数据', cArr);
        // 渲染城市数据
        // 渲染省份数据到下拉列表
        let str = '';
        cArr.forEach(item => {
          str = str + `<option value = "${item}">${item}</option>`
        })
        // 所有选项前 放一个空选项
        cSelect.innerHTML = `<option value = "">--省份--</option>` + str
      })
       // 市发生变化 区跟着变
      cSelect.addEventListener('change',async function(){
        // 当前选择的市 cs.value
        // 获取当前选择的市 下面的区县跟着渲染
        const {data:aArr} = await axios.get('/api/area',{
          params: {
            // pname 当前市的值
            pname: pSelect.value,
            cname: cSelect.value,
          },
        })
        console.log('区县数据',aArr);
         // 渲染区县数据
        // 渲染省份数据到下拉列表
        let str = '';
        aArr.forEach(item => {
          str = str + `<option value = "${item}">${item}</option>`
        })
        // 所有选项前 放一个空选项
        aSelect.innerHTML = `<option value = "">--区县--</option>` + str
      })
    
      // 单机确认 完成添加功能
      // 给确认按钮注册点击事件
      document.querySelector('#submit').addEventListener('click',async function(){
        const form = modalBox.querySelector('form')
        const data = serialize(form,{hash:true})
        data.age = +data.age
        data.gender = +data.gender
        data.group = +data.group
        data.hope_salary = +data.hope_salary
        data.salary = +data.salary
        // console.log(data);

        /******************判断是添加还是编辑功能*********************/
        if (modalBox.dataset.id === 'add') {
          // 添加功能
          // 3】发送请求，调接口
          // 4】重新渲染即可
          try {
            await axios.post('/students', data)
            renderList()
            // 关闭模态框
            modal.hide()
          } catch (error) {
            alert('添加学员失败！')
          }
        } else {
          // 编辑功能---调接口发送请求---关闭模态框---重新渲染列表
          const id = modalBox.dataset.id
          try {
            await axios.put(`/students/${id}`, data)
            modal.hide()
            renderList()
          } catch (error) {
            alert('编辑学员失败！')
          }
        }
      })  

  </script>
</body>

</html>